The experimental results suggest that it is an effective method to calculate ahead fluid volume to combine the theoretical mode with field tests.
试验结果表明，将理论模型与现场试验有机结合，用于计算前置液用量是一种有效方法。
During the primary cementing process, usually we pump some fluid with special technical performance between mud and cement slurries. It is called ahead fluid.
在油气井注水泥作业中，常常需要在水泥浆与泥浆之间注入一段具有特殊技术性能流体，这段流体就称为前置液。
For fracturing design, ahead fluid volume is an important operation parameter, which directly influences fracture morphology, fracture results or even results the success or failure of the operation.
压裂设计中，前置液用量是一个重要施工参数，它直接影响着裂缝形态、压裂改造效果，甚至决定压裂施工的成败。
Ahead to do this kind of surgery, you must extract the fetal villi or amniotic fluid, which is a harmful examination, the fetus and pregnant women are likely to pose potential risks.
超前做这样的手术，必须提取胎儿绒毛或羊水，这是一种伤害性的检查，对胎儿和孕妇都有可能带来潜在危险。
Ahead to do this kind of surgery, you must extract the fetal villi or amniotic fluid, which is a harmful examination, the fetus and pregnant women are likely to pose potential risks.
超前做这样的手术，必须提取胎儿绒毛或羊水，这是一种伤害性的检查，对胎儿和孕妇都有可能带来潜在危险。
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